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The e-EPIDEMIOLOGY Mobile Phone App for Dietary Intake Assessment: Comparison with a Food Frequency Questionnaire
- Source :
- JMIR Research Protocols, idUS: Depósito de Investigación de la Universidad de Sevilla, Universidad de Sevilla (US), idUS. Depósito de Investigación de la Universidad de Sevilla, instname
- Publication Year :
- 2016
-
Abstract
- Background: There is a great necessity for new methods of evaluation of dietary intake that overcome the limitations of traditional self-reporting methods. Objective: The objective of this study was to develop a new method, based on an app for mobile phones called e-EPIDEMIOLOGY, which was designed to collect individual consumption data for a series of foods/drinks, and to compare this app with a previously validated paper food frequency questionnaire (FFQ). Methods: University students >18 years of age recorded the consumption of certain foods/drinks using e-EPIDEMIOLOGY during 28 consecutive days and then filled out a paper FFQ at the end of the study period. To evaluate the agreement between the categories of habitual consumption for each of the foods/drinks included in the study, cross-classification analysis and a weighted kappa statistic were used. Results: A total of 119 participants completed the study (71% female, 85/119; 29% male, 34/119). Cross-classification analysis showed that 79.8% of the participants were correctly classified into the same category and just 1.1% were misclassified into opposite categories. The average weighted kappa statistic was good (κ=.64). Conclusions: The results indicate that e-EPIDEMIOLOGY generated ranks of dietary intakes that were highly comparable with the previously validated paper FFQ. However, it was noted that further testing of e-EPIDEMIOLOGY is required to establish its wider utility. [JMIR Res Protoc 2016;5(4):e208]
- Subjects :
- medicine.medical_specialty
020205 medical informatics
Dietary assessment
Food frequency questionnaire
food frequency questionnaire
02 engineering and technology
Epidemiological method
mobile phone application
03 medical and health sciences
0302 clinical medicine
Cohen's kappa
Environmental health
Epidemiology
0202 electrical engineering, electronic engineering, information engineering
medicine
030212 general & internal medicine
Original Paper
business.industry
Dietary intake
epidemiological methods
dietary assessment
General Medicine
Mobile phone
Epidemiological methods
business
Mobile phone application
Subjects
Details
- ISSN :
- 19290748
- Volume :
- 5
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- JMIR research protocols
- Accession number :
- edsair.doi.dedup.....dda98ce058782bfd8062f5f17a6405b8